a person "having insufficient lawful means of support," and as, in Victoria, that offence may be punished by imprisonment for one year, he came within the terms of the Act of 1903 SO soon as he set foot in New South Wales. If his offence had deserved and received an inconsiderable sentence, still the mere liability to imprisonment for one year would have brought him within the ban.
I repeat that I am far from deciding that the police power of the States in the case of undesirables has become non-existent. But I do think that the face of the State Act and the reasons by which its validity is supported do not indicate such a necessity as might entitle it to be held a valid exercise of the power.
I agree, therefore, that the writ must go.
ISAACS J. The lawfulness of the conviction depends upon the validity of that provision in the New South Wales Statute No. 6 of 1903, which makes it an offence for any person (with certain exceptions) to come into New South Wales within three years after the termination of his imprisonment in another State for any offence punishable with imprisonment for a year or longer.
The legality of the whole Act is challenged as conflicting both with sec. 92 and sec. 117 of the Commonwealth Constitution.
As to sec. 92, which is the only section I find it necessary to deal with, the applicant contends that the words "intercourse" is unlimited, and refers to all transit of persons, and that the words "absolutely free" are SO large as not to be susceptible of reduction by exceptions.
On the other hand, it is said for the respondent that sec. 92 must be read as subject to what is called the "police power" of the State, or in other words, the right of the State to safeguard the health, morals and safety of its inhabitants.
How are we to approach the Constitution to decide the question? Lord Loreburn L.C., speaking for the Privy Council in Attorney- General for Ontario v. Attorney-General for Canada 1, said
In the interpretation of a completely self-governing Constitution founded upon a written organic instrument, such as the British North America Act, if the text is explicit the text is conclusive,
1(1912) A.C., 571, at p. 583.